CODE UPDATED: removed full diagonalization channel from the code.
old code is saved in a suitable branch.

small udpate: lambda_SOC=0.0 modification in the BHZ code.
bug fixed: Giacomo noticed a small bug in the numbering and printing of the local observables
from the code (in observables_xxx.ed and columns_info.ed). fixed.
Merge branch 'devel'

Conflicts:
	drivers/ed_hm_2dsquare.f90